Tire-making machine



F b, 3. I925. 1,524,861

F. H. GROVE TIRE MAKING MACHINE Filed March 13, 1922 3 Sheets-Sheet 1gwvenlo p F. H. GROVE TIRE MAKING MACHINE 3 Sheets-Sheet 2 Filed March13, 1922 M w J awn 6 y 2 n Aw m n 6 I ll 0 Any a 2 d 2 J. u m 2 1. 1E 2HMWWH K A w MWI l M W2 Wflw 1 u u 3 I, n 3 2 h h H 7 1 WW a; u

F. H. GROVE TIRE MAKING MACHINE Filed March 13, 1922 3 Sheets-Sheet}(11101 mzq'a Patented Feb. 3, 1925.

PATENT OFFICE.

' FRANK H. GROVE, or GOLUMIBIANA; OHIO.-

TIRE-MAKING MACHINE.

Application filed March 13, 1922. Serial No. 543,447.

To all whom it may concern:

Be it known that I, FRANK H. GROVE, a citizen of the United States,residing at C0- lumbiana, in the county of Columbiana and State of Ohio,have invented new and useful Improvements in Tire-Making Machines, ofwhich the following is a specification.

This invention relates 'to tire building machines used for forming theouter casings of pneumatic tires and more particularly to a bead settingand trimming device which forms a part of this machine.

The objects of the invention are to provide a machine for building tirecasings with a simple and efiicient device arranged to cooperate withthe rotary core upon which the tire casings are built, to set the beadsupon the casings and trim the rough edges and surplus fabric from eachcasing before it is removed from the core.

The above and other objects may be attained by providing a revolublevertical post post being arranged to be turned! to bring either of thedevices into instant engagement with the casing upon the rotary core.

A preferred embodiment of the invention thus set forth in general termsis illustrated in the accompanying drawings forming part hereof in whichv Figure 1 is an end elevation of a tire building machine embodying theinvention; Fig. 2, an elevation of the bead forming and trimming devicesshowing a portion of the core and tire casing insection, the bead.

setting rolls being shown in engagement with the caslng.

Fig. 3, a similar view showing the trlm ming knives in engagement withthe tire.

casing;

Fig. 4,.a detail view ming knives and operating mechanism; and Fig. 5, asection on the line 55, Fig. 2. Similar numerals refer to similar partsthroughout the drawings. I

Referring to Fig. l of the drawings, the

frame of a tire building machine, which may be of any usual and wellknown construction, is designated by the numeral 1, the rotatable core 2being mounted thereon and arranged t o receive the fabric strips fromwhich the tire casing is built, in the usual manner.

of one of the trim A vertical bearing 3 is formed upon the frameadjacent to the core 2 and provided with a boss 4 at one side thereof inwhich is mounted a spring pressed plunger'5 arranged to be depressed bymeans of the lever 6 and adapted to enter either of the severalapertures 7 provided in the collar 8 fixed upon the post 9 which isjournaled in said bearing.

A head 10 is mounted upon the upper end. of the post 9 and provided onopposite sides with the ears 11 to each of which is hingedly connectedas at 12 a block 13 provided with a socket 1 1 within which one endportion of a rod. 15 is secured as by the set screws 16.

A'pair of collars 17 is adjustably mounted upon each of the-rods 15,ears 18 being formed upon said collars to which are pivoted as at 19,tubular members 20, each of which is provided with an angular arm 2]upon which is threaded an adjustable stop 22 for engagement with thecollars to limit the inward movement of said members.

Each of the tubular members 20 is arranged to be normally swung upon itspivot to hold the stop 22 thereof in engagement with the block 17 uponwhich the same is mounted, by means of the pull springs 23.

Each of these springs is connected at its opposite ends to the block andthe member 20 as at 2 1 and 25 respectively, in such position that whenthe members 20 are drawn into the operative position, the springswillmove over the pivotal center 19 thereof, holding the same in thisposition.

Rods 26 are located in one pair of tubular members 20, being fixedlymounted therein by means of the set screws 27. Each of these rods has anangular. extension 28 carrying a pair of bead setting rolls 29 and 30. 1

Rods 31 are mounted'in the other pair of tubular members 20 in the samemanner, each of said rods having a head 32 which receives the reduced,threaded shank 33 of the guide block 34; through which is slidablymounted the arbor 35 carrying the trimming lmife 36. A nut 37 isprovided upon the shank 33 for adjusting the arbor at any desired angle.

A yoke 38 is mounted upon the reduced, rear extremity 39 .of the arbor,being notained in position thereon by the nut 40, the screw 41 beingjournaled in said yoke and extending through/the threaded bore 42 of theguide block, an operating crank 43 being fixed upon'the rear end of thescrew.

When the bead setting and trimming ad-- 3ustinents are not in use, thehinged rods 15 upon which said attachments are carried,

are swung into the vertical position, as shown in Fig.1, in whichposition they are held by means of the hooks 44 pivotally mounted uponthe head 10, as at 45 and en- 1 gaging the pins 46 provided for thepurpose the core when the hook. thereon is released,

allowing the arm 15 to swing, into a horizontal position above the core,as shown in Figs. 2 and 3.

he members 20 are then swungtoward each other upon their pivots, thesprings' 23 pulling the same into the operative position, bringing thebead setting rolls '01.

knives into engagement with the tire casing upon the core, as shown inFigs. 2 and 3 respectively.

From the above, it will be evident that a bead setting and trimmingattachment is provided which 'ma be normally held in the inoperativeposition to allow the tire casing to be built upon the rotary corewithout interference and which may be easily and quickly operated tobring either of. the

min'g device upon the other arm, means for I normally holding the armsin raised pdsition, and means for swinging either arm into operativeposition above the, core.

2. In combination with a rotatable tire building core, a bead settingand trimming device including a rotatable block mounted adjacent to thecore and rotatable upon an axis at right anglies to the axis of thecore,

apair of arms nged to the block, a panof members pivotally mounted; uponeach arm, bead setting rolls upon the members on one arm, trimmingknives upon the members on the other arm, means for ur ing the membersof each pair toward each means for holding the mem rs ofeach pair ininoperative position, means for holding the arms in raised position andmeans for swinging either arm into operative position above the core. I

3. In combination with a rotatable tire building core, a bead settingand trimming device including a rotatable block mounted adjacent to thecore and rotatable upon an axis at right angles to the axis of the core,a pair of arms hinged to the block, a pair of members pivotally mountedupon each arm, bead setting rolls upon one pair of said members,trimming knives upon the other pair of members, springs for urging eachpair of members toward each other,

ineans for holding the arms in raisedposition and means for swingineither arm into operative position above t e core.

\ FRANK H. GROVE.

other,

